Compassvale Pearl’s history connects a May 2008 housing launch record with a contractor’s account of the project and a later completion listing. The reported offer comprised 420 premium flats: 336 four-room and 84 five-room units. These figures describe a housing mix, not the number or characteristics of residents.
Wee Hur’s 2008 annual report identifies the development as Sengkang Neighbourhood 2 Contract 4 and gives May 2011 as the expected completion at that time. Its later residential portfolio lists completion in 2011. A forecast naming a month and a later record naming a year are useful together, but they do not establish an exact completion day.
This guide explains those different records, works through the eighty–twenty flat mix and offers original exercises in project planning, percentages and local-history writing. It does not infer every household’s moving date, assess present property value or treat a historical housing offer as a current opportunity.
eduKateSengkang • Neighbourhood history and learning
Choose your reading route
Read in order, or begin with the question closest to yours. The historical record and original learning examples are kept distinct.
Route 1 · Chapters 1–2: Read the project records
Locate Pearl in the record without merging its milestones; What a contractor’s annual report adds to neighbourhood history.
Route 2 · Chapters 3–4: Understand time and evidence
Expected completion is not the same statement as completion; Project completion and household arrival are different histories.
Route 3 · Chapters 5–6: Calculate the flat mix
Worked example: convert the flat mix into percentages and ratio; Diagnose percentage errors before they become historical claims.
Route 4 · Chapters 7–8: Model and observe
Use a simple project model without pretending it is the building programme; Explore Pearl as a neighbourhood rather than a spreadsheet.
Route 5 · Chapters 9–10: Write and check
Write a forecast-and-record history with clear confidence; Independent practice, answer checks and the next route.
Full chapter index · Worked reasoning and practice · Sources · Continue exploring
Contents
Chapters 1–2 · Read the project records
1. Locate Pearl in the record without merging its milestones
2. What a contractor’s annual report adds to neighbourhood history
Chapters 3–4 · Understand time and evidence
3. Expected completion is not the same statement as completion
4. Project completion and household arrival are different histories
Chapters 5–6 · Calculate the flat mix
5. Worked example: convert the flat mix into percentages and ratio
6. Diagnose percentage errors before they become historical claims
Chapters 7–8 · Model and observe
7. Use a simple project model without pretending it is the building programme
8. Explore Pearl as a neighbourhood rather than a spreadsheet
Chapters 9–10 · Write and check
9. Write a forecast-and-record history with clear confidence
CHAPTER 1 OF 10 • Read the project records
1. Locate Pearl in the record without merging its milestones
A housing development has more than one useful date. A sales launch belongs to the history of an offer; a construction report belongs to the history of delivery; a household’s move belongs to a personal history. These stories connect, but they should not be compressed into one statement saying that everything happened when the project was announced.
The secondary launch index provides the first chronological anchor. The contractor’s annual report adds a project description, a contract identity and an expectation about completion. The later portfolio contributes a retrospective completion listing. Keeping these roles separate gives a clearer account than choosing the earliest visible date and treating the others as unnecessary detail.
Start a notebook with two kinds of labels: document date and event described. A report for a particular financial year may discuss ongoing work and expected future milestones. The year on its cover does not mean every project mentioned was completed then. Likewise, a web page’s upload date is not automatically the year of the building activity described within it.
An original classroom example helps. A school exhibition has an announcement, a preparation schedule and a later account of the completed display. The announcement is not proof that the display was already finished, and the schedule is not proof that every planned task happened exactly as intended. Reading the three together requires understanding what each document was written to do.
Pearl’s records should therefore be placed in a sequence with verbs: launched, described as ongoing, expected to complete, and later listed as completed. These verbs do real historical work. Replace them all with “built” and the distinction between anticipation and retrospective reporting disappears. A student may then make an exact timing claim that none of the sources supports.
Keep the development’s full name throughout. Similar names and nearby projects can produce convincing but irrelevant search results. Before adding a photograph, figure or date, check that the record identifies Compassvale Pearl and that any contract reference belongs to this project. Careful identification at the beginning prevents a beautifully written paragraph from becoming a history of the wrong place.
CHAPTER 2 OF 10 • Read the project records
2. What a contractor’s annual report adds to neighbourhood history
A contractor’s report views a development as work undertaken and delivered, rather than only as homes advertised to prospective buyers. That perspective can preserve details useful to local history: the project identity, the stated type of work, a housing mix and the stage or expectation described at the time. It adds another paper trail to the story of a familiar place.
The fact that a source is primary does not mean it answers every question. It is primary for the organisation’s own reporting of its work. It is not automatically a household survey, an independent evaluation of resident satisfaction or a legal completion certificate. Ask what the organisation was positioned to record and what its document was intended to communicate.
Corporate reporting also has a viewpoint and audience. An operations review selects information relevant to the organisation’s activities. That does not require a reader to dismiss it, but it does require attention to scope. A concise project paragraph may be enough to establish the reported mix and expectation while leaving many construction details and individual experiences unaddressed.
An original comparison uses a school production. The invitation describes the show to an audience; a workshop log records scenery being made; a later programme thanks the team. All concern the same production, but only the workshop log is likely to explain what work was underway at a particular moment. Matching source to question is more useful than declaring one document universally best.
For a Pearl history project, cite the annual report for what it actually states rather than borrowing unrelated financial figures to make the account appear authoritative. Company-wide revenue, share performance or other projects’ results are not necessary to explain this development’s historical record. Including them could distract from the place and invite conclusions outside the purpose of the article.
A good source note names the issuer, report year and relevant project description. If the accessible copy is hosted by an archive rather than the issuer, identify that location too. The underlying document and the hosting service are different parts of provenance. This lets a later reader retrace the claim even if a company reorganises its website or an older direct link changes.
CHAPTER 3 OF 10 • Understand time and evidence
3. Expected completion is not the same statement as completion
The annual report’s expected month is a forward-looking statement from the time of reporting. The later portfolio’s completion year is a retrospective statement. They can be compared, but they do not have the same precision. A month-and-year forecast and a year-only outcome cannot establish whether the project finished on a particular day or exactly matched the planned month.
This is a useful lesson about information resolution. A calendar-year label covers a broader interval than a month label. When the outcome is reported only at that broader level, it may be compatible with the forecast’s year while leaving the month unresolved. Do not sharpen a broad record by copying a more precise date from a different kind of statement.
Try an invented example: a class plans to finish a mural in March of a certain year. A later school account says the mural was completed during that year. Can you say it finished in March? No. It could have, but the later account does not establish that. Can you calculate how many weeks early or late it was? Not from those two statements alone.
The same reasoning prevents an unfair delay claim. A difference between a date in a secondary index and a date in a contractor’s record should not automatically be narrated as a documented construction delay. The sources may have different scopes, and an estimated date is not itself a record of what happened. A delay explanation requires evidence appropriate to that claim.
For Pearl, keep the forecast and the later listing in their original forms. Their relationship is informative without a dramatic verdict. A student can write that the later listing records the same calendar year as the annual report’s expectation, while the exact completion month is not established by that listing. That is a complete comparison, not an evasive answer.
Ask learners to underline precision words: expected, completed, month, year and exact. Most errors arise when one of those words disappears during paraphrase. A careful writer can make the paragraph readable without removing them. The aim is to preserve the strongest statement the evidence supports, and no stronger.
CHAPTER 4 OF 10 • Understand time and evidence
4. Project completion and household arrival are different histories
A completed project and a settled household are not identical events. Even where a construction record gives a clear completion milestone, it does not by itself tell us when each home was occupied, how a household prepared to move or when daily routines became familiar. Those are additional questions involving other records and personal experiences.
This distinction does not require reconstructing official procedures. For a general learning model, imagine that a room is finished, access arrangements are made, belongings arrive and a routine develops. These are conceptually separate stages, even if some occur close together. The model explains why one project-level date cannot stand in for every person’s experience.
A child may ask, “When did people start living here?” Treat that as a legitimate new question rather than forcing the portfolio year to answer it. A complete answer could require appropriate handover or occupation records, or voluntary, clearly attributed household recollections. This article has not collected those materials and therefore does not assign a universal arrival date.
Consider a fictional family that gradually learns a new route after moving. The project might already be physically complete, while the family’s sense of familiarity develops over time. This is an original example, not a claim about a Pearl household. It helps explain why construction history and lived history can have different timelines without contradicting one another.
For oral-history work, permission matters. Someone may choose to describe a general memory without sharing a home address, exact schedule or identifiable family details. A school exercise should not ask children to investigate when particular units became occupied. A neighbourhood can be studied through public records without collecting private residential information.
The practical writing rule is to keep the level of the claim visible. “The contractor lists a completion year” is project-level reporting. “One consenting interviewee remembers moving later” would be an attributed personal recollection, if such an interview existed. “Every household arrived together” would need evidence not supplied by either. Clear levels let the story become more human without inventing uniformity.
CHAPTER 5 OF 10 • Calculate the flat mix
5. Worked example: convert the flat mix into percentages and ratio
The reported mix supports a straightforward mathematics lesson when every quantity keeps its label. First confirm the whole by adding the two categories: 336 plus 84 equals 420. Only after that check should you find a fraction of the total. This order catches a common mistake: choosing a denominator before confirming what the whole actually represents.
For the four-room category, divide 336 by 420. The result is 0.8, or 80%. For the five-room category, divide 84 by 420. The result is 0.2, or 20%. The shares add to 100%, which is a useful consistency check for these two categories in the reported offer.
The ratio 336:84 simplifies by dividing both terms by 84, producing 4:1. The order matters: four-room to five-room, not the reverse. There are five equal ratio parts altogether. One part corresponds to 84 flats in this reported mix, while four parts correspond to 336. Writing the category names beside the ratio prevents a correct simplification from answering the wrong question.
Represent the proportions with five equal boxes, shading four in one colour and one in another. Label the diagram as a model of proportions. The boxes are not actual residential blocks, storeys, households or groups of residents. Equal diagram parts represent equal quantities in the model; they do not establish the physical arrangement of the development.
Now explain the result in a sentence: “Four-room flats formed eighty percent of the reported offer.” Do not write “eighty percent of residents had the same family size”. Flat categories do not reveal household composition, occupancy or present population. The numerical calculation is exact for the stated figures, while the demographic conclusion would be unsupported.
Try independently: what fraction of the reported total belongs to the five-room category, and how does that connect to the ratio? The answer is one fifth, corresponding to one of the five total ratio parts. A good explanation states the counted unit and the whole. A learner who can explain that connection understands more than a learner who only presses the percentage button.
| Reported category | Flats | Share of reported total |
|---|---|---|
| Four-room | 336 | 80% |
| Five-room | 84 | 20% |
| Total | 420 | 100% |
CHAPTER 6 OF 10 • Calculate the flat mix
6. Diagnose percentage errors before they become historical claims
The most useful mathematics check is often a language check. Ask: what is the part, what is the whole and what unit is being counted? If a learner cannot answer those questions, doing the division faster will not solve the problem. Pearl’s mix makes the distinction visible because there are two named categories and a clearly stated combined total.
A common error divides the smaller category by the larger category and calls the result its share of all flats. That division compares one category with the other; it does not use the whole. It answers a different question. A percentage calculation should always be read back in words before it is accepted as the final answer.
Another error confuses ratio parts with percentage points. A ratio of four to one contains five total parts, not four. The smaller category is therefore one fifth of the whole, not one quarter. Draw five equal cells and count them aloud if necessary. The visual should explain the denominator, not simply decorate an answer already obtained.
Try an invented diagnostic that uses different numbers from the historical record. A fictional display contains twelve blue cards and three green cards. A learner says that green cards are twenty-five percent of the display because three divided by twelve is one quarter. Explain the error, then repair it. The whole contains fifteen cards, so the green share is three fifteenths, or twenty percent.
The answer discussion should acknowledge what the learner did correctly: they formed a comparison between green and blue. The problem was attaching that comparison to the wrong sentence. This is a valuable distinction for teaching. A wrong answer may reveal a scope error rather than an inability to divide, and the repair should address the actual misunderstanding.
Finally, return from the model to history. Even a correct share of flats does not reveal a share of people. Different units can have different numbers of occupants, and the historical mix is not a current population record. Do not multiply by an invented average household size and publish the result as the precinct’s population. The boundary is part of the mathematics lesson, not a footnote to be skipped.
An inverse question checks whether the learner understands the relationship in both directions. In a wholly fictional collection, twenty percent corresponds to eighteen cards. What is the total? Since twenty percent is one fifth, the total is five times eighteen, or ninety cards. Multiplying eighteen by twenty would confuse a percentage label with a scale factor. The reverse calculation can also be written as eighteen divided by 0.2.
Now state the model’s boundary: these invented cards are not additional Pearl flats, a later housing revision or a population estimate. The example teaches how a known part and a known percentage determine a whole. Compare the method with the historical calculation only at the level of mathematical structure. A useful extension asks the learner to create a different card total that still has the same proportion and explain why the ratio remains unchanged even though the quantities differ.
A correct extension changes both categories by the same multiplier. Changing only one category changes the ratio, even if a diagram still looks roughly similar.
CHAPTER 7 OF 10 • Model and observe
7. Use a simple project model without pretending it is the building programme
The contrast between an expected milestone and a later record can inspire an original project-planning exercise. Choose a small fictional task such as preparing a class exhibition. List what must be finished, what depends on something else and what evidence would show completion. The exercise models reasoning about plans; it is not a reconstruction of Pearl’s construction schedule.
Suppose a display needs a written text, a checked image caption and a printed panel. Printing depends on the text and caption being ready. The three tasks cannot all be treated as independent if one requires the others. A learner can draw a short dependency diagram or arrange paper cards to show which tasks can overlap and which must wait.
Add an expected finishing point and later record what actually happened in the invented exercise. If the text was ready but the panel was not printed, “content complete” is not the same milestone as “display ready”. This mirrors the general importance of event labels without importing any assumption about construction methods, official handover stages or the causes of a real project’s timing.
Now introduce a change: the caption requires correction after checking. Ask how that affects the dependent task. A sound answer names the connection rather than saying “everything is delayed” automatically. Some work may continue while another part waits. The learner should reason from the stated dependencies, not invent a complicated programme to make the example feel realistic.
Keep forecast and outcome columns separate. The forecast records what was expected when the plan was made. The outcome records what the later evidence establishes. If the outcome is reported only as “finished that week”, do not assign an exact day by copying the forecast. The exercise now brings together sequencing, precision and honest retrospective writing.
The transfer back to Pearl is deliberately limited. We learn why an annual report’s expectation and a portfolio’s later completion statement should retain different verbs. We do not claim to know the project’s task dependencies, workforce arrangements or reasons for its timing. A model is valuable when it clarifies one relationship while making clear which real-world details it does not contain.
CHAPTER 8 OF 10 • Model and observe
8. Explore Pearl as a neighbourhood rather than a spreadsheet
Figures give the development a documentary identity, but a neighbourhood is more than a table of housing categories. A respectful family enquiry can pair the historical record with a small present-day observation. Before visiting, identify the exact development on a current map and choose a suitable route. Follow local signs and remain in permitted public or common areas.
Select one visible connection, such as the relationship between a directional cue and a junction. Record what the feature communicates and what remains unclear to you. This is more useful than trying to assess the whole precinct after a short walk. A focused question creates a manageable learning task without turning residents’ surroundings into a compulsory fieldwork course.
Use separate headings for “historical record”, “observed today” and “question”. The first might contain a concise source-labelled project milestone. The second should describe only what was actually visible. The third can ask how someone unfamiliar with the area would find a destination. It should not speculate about the private routines or preferences of residents.
An original sample note might say: “The sign names a destination, but my sketch does not show whether the route beyond the junction is continuous.” This is an honest observation boundary. It does not claim there is an obstruction; it says the observer did not establish the whole connection. A gap in your knowledge is not automatically a defect in the environment.
A sketch can preserve the relationship without photographing private activity. Include a date and a “not to scale” label, and omit identifiable people, windows, interiors and unit details. Give other users priority and stop if weather, works or access conditions make the activity unsuitable. No educational objective requires entering a restricted area or obstructing a shared route.
Back home, compare the two kinds of evidence. The project record helps explain a historical stage; the sketch records a dated present observation. Neither replaces the other. The result is a small account that recognises Pearl as a lived setting while remaining careful about what the family has actually learned, rather than attaching invented resident experiences to a set of housing figures.
CHAPTER 9 OF 10 • Write and check
9. Write a forecast-and-record history with clear confidence
A good Pearl history has a simple thread: a housing offer, an ongoing project described by a contractor, a forecast at that time and a later completion listing. The thread is not “one number proves everything”. Each source contributes a different piece, and the reader should be able to tell which piece supports which statement.
Begin with the development’s identity and the launch context. Introduce the contractor’s account as another perspective, not as a repetition of the offer. Then explain why expected completion and later recorded completion require different wording. A paragraph becomes substantial when it explains this relationship, not when it adds unrelated company history or repeated claims that the place is attractive.
Here is an original model sentence pattern: “The earlier report expected a milestone at a stated time; the later record lists a broader completion period. The records can be compared at the level of precision they share, while the exact outcome within that period remains unestablished.” The pattern is useful beyond this project because it keeps time, scope and uncertainty in view.
Now add the mathematics in a separate paragraph. State the counted categories, show how the whole is checked and explain the share or ratio. End with one meaningful limit: this is a flat mix rather than a resident profile. Separating the calculation from the timeline makes both easier to understand and prevents a numerical detail from appearing to prove an unrelated historical conclusion.
Try independently: repair “The report proves that all families moved in during the forecast month.” A sound repair attributes the expectation to the earlier source and the completion listing to the later one, then removes the universal household claim. It need not contain every date. The essential improvement is the relationship between what was planned, what was later reported and what remains unknown.
During revision, search for hidden certainty words: exactly, everyone, proved, always and therefore. None is forbidden, but each must earn its place. Ask whether the source actually establishes the precision or universality being claimed. Replace an overstatement with the strongest accurate version, not with a vague sentence that says nothing. Precision is the route to confidence, not its opposite.
CHAPTER 10 OF 10 • Write and check
10. Independent practice, answer checks and the next route
Finish with three tasks that test understanding rather than memory alone. First, explain why a month-specific expectation cannot be converted into an exact completion month using a later year-only listing. Second, explain why a four-to-one ratio contains five total parts. Third, identify one observation a family can make without collecting personal information about residents.
A sound first answer distinguishes a forecast from a retrospective statement and recognises their different precision. A sound second answer adds the ratio parts and names the whole. A sound third answer might describe a sign or sketch a junction from a permitted area. The learner should explain why the observation does not establish every user’s experience.
For a fuller independent attempt, produce a short report with four components: a source-labelled timeline, a worked percentage calculation, a clearly fictional project analogy and one respectful enquiry question. Label the analogy as original. Do not include a current property valuation, an estimated population or an exact moving date unsupported by the records.
Check the report in reverse. Start at the conclusion and ask which earlier evidence supports it. Then inspect every number for a unit and every date for an event label. Finally, inspect the source notes: can another reader distinguish the launch index from the contractor’s report and the later portfolio? This backwards reading catches conclusions that grew larger than the evidence during drafting.
If a child finds the task difficult, reduce the number of ideas rather than supplying a paragraph to copy. Begin with two cards saying “expected” and “recorded later”. Ask the child to explain the difference orally. For the mathematics, use five equal boxes before returning to the exact quantities. Understanding the relationship is more important than displaying all the terminology at once.
The Compassvale neighbourhood guide provides the next change of scale, from one development’s paper trail to its wider setting. Keep Pearl’s records attached to Pearl rather than transferring its dates or mix to nearby projects. The lasting learning is practical: plans, quantities and later outcomes become easier to understand when we keep their labels, compare like with like and leave unsupported details unwritten.
Frequently asked questions
What does the 2011 listing establish?
It is the contractor’s retrospective completion-year statement. It does not establish an exact completion day, confirm the forecast month or identify when every household moved. Keep the source and its level of precision attached to the claim.
Was May 2011 an expectation or a confirmed exact outcome?
In the annual report it was an expected completion point. A later listing naming the year does not independently confirm that exact month. This distinction avoids inventing either precise on-time delivery or a delay from evidence that does not establish it.
What does the eighty–twenty split count?
It describes the two flat categories in the reported offer. It does not describe residents’ ages, household sizes, current occupation or population. The ratio is four-room to five-room flats, and its five total parts are mathematical proportions rather than actual blocks.
Are the project-planning tasks based on Pearl’s construction programme?
No. They are original classroom models for learning about dependencies, forecasts and outcomes. They do not reconstruct the development’s engineering methods, schedule, staffing or official procedures.
Is this a guide to current housing opportunities?
No. This is a historical and educational article. Old launch information is not a current application invitation, and the article does not assess present prices or suitability. Use current authoritative information for a present housing decision.
Sources and evidence limits
Historical sources previously checked on 19 October 2026; expanded learning article reviewed on 21 October 2026. Historical launch records, reports and reproductions do not establish present access, current sales arrangements or every household’s moving date. Source types are identified below.
Housing Map BTO index — secondary launch chronology
Wee Hur Annual Report 2008 — primary contractor account and reported flat mix (legacy PDF link)
Wee Hur residential project portfolio — primary contractor completion listing
Contemporary reproduced May 2008 sales table — corroborating flat mix
The family activities and worked examples are original learning suggestions, not accounts of residents’ private lives. The featured classroom photograph illustrates eduKate’s learning context; it is not a photograph of the development.
The legacy annual-report PDF did not load during this review. Its indexed text supplies the project passage; the issuer’s annual-report index also lists the 2008 report. The separate project portfolio remains the source for the completion-year statement.
